diff options
| author | Ilya Bakoulin <Ilya.Bakoulin@amd.com> | 2022-11-02 15:56:16 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-11-15 13:35:15 -0500 |
| commit | 180f33d27a55496e1b130ede7db24240133b2428 (patch) | |
| tree | 04f6a04257ef752a9ef8d036b1876f1500f4a486 /drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | |
| parent | 158858bf1a96adf8370ee829060e87fd10129e62 (diff) | |
drm/amd/display: Adjust DP 8b10b LT exit behavior
[Why]
Polling SINK_STATUS DPCD can cause some non-DP2.0 LTTPR hubs to hang and
no longer respond to AUX.
[How]
As a workaround for the problem hubs, and also to more closely match
DP spec 8b10b behavior, don't poll for intra-hop AUX reply indication
on 8b10b-encoded links.
Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com>
Acked-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Ilya Bakoulin <Ilya.Bakoulin@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c')
0 files changed, 0 insertions, 0 deletions